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Permethrin is a synthetic pyrethroid insecticide widely used in agricultural pest control and hygienic pest management. Its mechanism of action mimics that of natural pyrethrins, but it has higher stability and a wider range of applications.
Product Details
I.Basic Information
·Chemical Name: 3 - Phenoxybenzyl -(1RS,3RS;1RS,3SR)-3-(2,2 - dichlorovinyl)-2,2 - dimethylcyclopropanecarboxylate
·English Name: Permethrin
·CAS Number: 52645-53-1
·Molecular Formula: C₂₁H₂₀Cl₂O₃
·Molecular Weight: 391.3 g/mol
·Category: Pyrethroid insecticides
2.ErPhysical and chemical properties
·Appearance and properties
·The pure product is a white crystalline powder, and the industrial product is a pale yellow to brown viscous liquid.
·It has no obvious odor or a slight aromatic odor.
·Solubility
·Sparingly soluble in water (solubility is about 0.2 mg/L at 20℃), and easily soluble in organic solvents (such as acetone, methanol, xylene, etc.).
·Stability
·Stable under acidic conditions, easily decomposes when encountering alkalis, so it is not suitable to be mixed with alkaline pesticides.
·It has good light stability and is suitable for foliar spraying.
3.Mechanism of Action and Uses
·Mechanism of Action
·By acting on the sodium ion channels in the insect nervous system, it prolongs the conduction of nerve impulses, causing the insects to become overexcited, spasm, and eventually die.
·It has contact and stomach toxicity effects, but no systemic activity.
·Main uses
·Agricultural field: Control Lepidoptera, Coleoptera, and Hemiptera pests (such as cotton bollworms, aphids, leafhoppers, etc.) on crops like cotton, vegetables, fruit trees, and tea.
·Health field: Used for the control of sanitary pests in households and public places (such as hospitals and schools) (such as mosquitoes, flies, cockroaches, fleas, etc.), and can also be used for flea removal on pets (must be used according to specific formulations).
·Other uses: Insect prevention for textiles (such as mosquito - proof fabrics), wood preservative treatment, etc.
4.Formulations and Application Methods
·Common Formulations: Emulsifiable Concentrate (EC), Wettable Powder (WP), Suspension Concentrate (SC), Emulsion in Water (EW), Granules (GR), Aerosol, Mosquito Coil, Bait, etc.
·Application Methods
·Spraying: Dilute and spray evenly on the crop leaves or the habitats of pests.
·Fumigation: Released in the form of mosquito coils, smoke agents, etc., used for killing mosquitoes and flies indoors.
·Soaking / Smearing: Flea - control products for pets (such as drops, medicated bath solutions) must strictly follow the dosage to avoid ingestion or skin irritation.
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